Korean Journal of Chemical Engineering

, Volume 8, Issue 4, pp 240–247 | Cite as

Sensitivity behavior analysis in distributed parameter estimation

  • Chang-Bock Chung


This paper is concerned with sensitivity analysis for the distributed parameter estimation problem arising in the modeling process for fluid flow in underground porous media. An efficient algorithm was constructed using variational calculus techniques for the evaluation of sensitivity gradient curves which describe variations of system outputs resulting from variations of a spatially-varying parameter in nonlinear partial differential equations. For a test problem of estimating transmissivity of a one-dimensional ideal gas reservoir, sensitivity behavior was analyzed under various reservoir conditions, and the results were applied to devising a parameter discretization scheme which will yield improved parameter estimates.


Observation Well Production Well Nonlinear Partial Differential Equation Uniform Mesh Pressure Output 
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Copyright information

© Korean Institute of Chemical Engineering 1991

Authors and Affiliations

  • Chang-Bock Chung
    • 1
  1. 1.Department of Fine Chemical EngineeringChonnam National UniversityKwangjuKorea

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